2. Performs maintenance for the Golf Course such as mowing of tees, greens, approaches, fairways, and roughs with specialized mowing equipment, maintaining grass and sand bunkers, changing and setting tee marker and putting green pins, seeding, top dressing, aerating, fertilizing under the guidance of the greens keeping superintendent, master gardener or gardener. The Groundskeeper 4 (Step 1 of the MGP) supports a variety of landscaping services under the direction of a Master Gardener, Gardener or Supervisor performing landscaping, maintenance and repair services for Yale Athletic fields, Golf Course, Campus Landscape Areas and surrounding properties as assigned.